User`s manual

Chapter 5 - Initializing the GP

GP-477R/577R Series User's Manual 5-9

This menu runs the settings related to PLC communication. Be sure to

match the settings listed below with the SIO setup on the PLC host.

PLC Connection Manual - Environment Setup

5.4 SET UP I/O

This section describes the communication setup with the host PLC and the

setup for any peripheral equipment. The SET UP I/O menu includes the

SET UP SIO, SET UP PRINTER, SET UP TOUCH PANEL, and COMMU-

NICATION SETUP menus.

1. SET UP SIO

COMMUNICATION RATE

The COMMUNICATION RATE (baud rate) is the data communication speed, mea-

sured in bits per second (bps), between the GP and PLC. Match the COMMUNICA-

TION RATE values in both the PLC and GP. Depending on the rate selected, certain

PLCs may not be able to be used. PLC Connection Manual.

DATA LENGTH

For data communications, the DATA LENGTH must be set up as 7-bit or 8-

bit data.

STOP BIT

Set up the STOP BIT as either a 1-bit or 2-bit value.

PARITY

Set up whether no parity check, or an odd or even number parity check will

take place during communication.

CONTROL

Data flow CONTROL prevents the overflow of data sent back and forth.

Select either X-CNTRL or ER-CNTRL.

COMMUNICATION FORMAT

Select one of the following options for the communication format: RS-

232C, RS-422 (4 line), or RS-422 (2 line).

• When using an RS422 cable and the Memory Link format, be

sure to select the 4-line option.

Important

Reference